Side-filing machine and equalizer for band and other saws of like construction.



-I. H ROBBINS. SI FILING MACHINE ANI)l EQUALIZER FOR BANDAND OTHER SAWS 0F LIKE CONSTRUCTION.

APPLICATION FILED OCT- 4. 1.9I5-

Patented Oct. 9,1917.

aan srarasrarsnrorrion` JOHN H. RoBBINs, or vInnrnnaroLis, iraniana. Assis-Noa To v.atinente n. ROMANS, or

f INDIANAPOLIS, INDIANA.

SIDE-FILING MACHINE AND EQUALIZER FOR BAND-ANDIOTHEUR LIKE..

CONSTRUCTION. v j vt g4 i v Application filed October 4, 1915. Seri'aINo. 53,969. V

To all whom t may/concern.'

Be it known that I, Jol-IN H. RorNs, a citizen of the United States of America, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Side-Filing Machine and Equalizer for Band and other Saws of like construction.

My invention relates to improvements in saw-sharpening and side dressing machines.

The invention has for its object to provide a device of the character described which may readily be attached to the saw blade without the necessity of removing the latter from the mill wheels.

A further object is to provide a device which will sharpen and aline the teeth on both sides of the saw while the saw is in motion.

Other and further objects will be in part described and in part obvious as the description is proceeded with.

In the accompanying drawings:

Figure 1 is a perspective view of the invention;

Fig. 2 is a perspective .view of the anvil and wheel detached;

Fig. 3 is a central vertical sectional view;

Fig. 4 is a sectional view on the line 4-4 Fig. 3 and Fig. 5 is a sectional view taken on the line 5-5 Fig. 3.

Referring more particularly to the drawings in which similar reference numerals are used to designate like parts throughout the several views, the numeral 1 designates a saw guide formed with a slot 2 through which a power driven or otherwise suitably actuated saw 3 is adapted to work. The sharpening and dressing machine consists of a pair of spaced arms 4 preferably of angle iron and of U-shape in cross section, eachv arm being provided at its forward eX- tremity with an integral leg 5. The other end of the arms 4 have secured thereto: a

y pair of supporting legs 6, a U-shaped leaf vvAttached to theiforwar'd ends ofthearms 4 1s a pair of ,clamping plates 19 formed with inwardly extending 'anges 8 for' a Patented oct. a, 17917.

purpose about to be described. The arms 4` I are formed with similar flanges 9 which with the anges 8 form jaws between which a pair of files 10 are adapted to be clamped. In order that les of different widths may be accommodated the clamping plates 19 are mounted for longitudinal adjustment toward and away vfrom the extremities of the arms 4 as by bolts 11. It will also be noted that the liles are vertically and angularly disposed so that their inner longitudinal edges converge toward the saw teeth 12 when the device is clamped upon a saw.

Means for steadying the saw during the sharpening and side dressing operation is provided, said means in the preferred embodiment of the invention comprising a sliding bifurcated block 13 between the legs 14 of which is mounted a grooved wheel 15 adapted to receive the back edge of the saw. v

The block 13 is adapted to be adjusted longitudinally between the arms 4 by means of threaded spindle 16 and handlev 17 thus adapting the machine for use on saws of varying widths. Thumb screws 18 are proj vided for laterally centering the saw with respect to the opening betweenthe iiles and to allow for varying thickness and width of swage of the saw teeth.

In practice, after the saw has been led and swaged the machine is placed over the saw from the back thereof, the files adjusted to the side of the saw teeth and the wheel 15 caused to engage the back of the saw. The sharpening and alining operation is effected by the passage of the saw teeth between the files, the attention of an attendant being unnecessary once the proper adjustments have been made.

FromV the foregoing it will be seen that I have invented a simple, economically constructed and etlicient device for filing, equalizing and alining up the teeth of a saw while the latter is running on the wheels of a mill.

Having thus described my invention,

What I claim is:

1. A` saw sharpening and side dressing implement comprising a pair of spaced U- Y shaped arms each arm being formed at its forward extremity with an integral leg, a

U-shaped spring connecting the other end of said arms together7 a pair of legs secured yto said spring., an antifriction saw engaging member slidably mounted between said arms, means for adjusting the position of said member longitudinally of said arms and means for securing a pair of files to the free ends of said arms.

2. A sawfsharpening and side dressing implement comprising a pair of spaced arms, a resilient member connecting said arms at one end and normally forcing them toward each other, means for securing a pair of les to the other end of said arms, a biurcated block slidably` mounted between said arms, a grooved Wheel mounted in said bifurcated block, and manual means mounted in said resilient member for moving said block and Wheel.

JOHN n. RcBBiNs.

Vitnesses:

ANNA MCFERRAN, WILLIAM H. BRIGHTMIRE.

`Genies o' this patent may be bbtained for ve cents each, by addressing the Commissioner yo'f /ratexits Washington, D. C. 

